Puerarin, also known as puerarin flavone, is a natural isoflavone carboglycoside, which is the key component of puerarin to exert its efficacy. Puerarin has the functions of lowering blood glucose, regulating blood lipid, protecting blood vessels, anti oxidative stress, anti infection, improving insulin sensitivity index, etc., and has less adverse reactions. It is known as “phytoestrogen”, and is clinically used to treat cardiovascular and cerebrovascular diseases, cancer, Parkinson’s disease, Alzheimer’s disease, diabetes and diabetes